4-Piperidinecarboxylic acid, 1-[5,6,7,8-tetrahydro-8,8-dimethyl-6-(phenylmethyl)pyrido[4,3-d]pyrimidin-4-yl]-, ethyl ester 在
palladium(II) hydroxide
甲酸铵 、 (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
反应 6.0h,
生成
ethyl 1-[6-(biphenyl-4-ylcarbonyl)-8,8-dimethyl-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-4-yl]piperidine-4-carboxylate